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APA Citation
Fischer, T., Stumpf, P., Schwarz, P. E. H., & Timpel, P. (2022). video-based smartphone app ('VIDEA bewegt') for physical activity support in German adults: a single-armed observational study. BMJ open, 12(1), . http://access.bl.uk/ark:/81055/vdc_100150524294.0x00001f